I found the very best locksmith in Berlin!
I have an over 100 years old door key which I wanted to have duplicated … impossible for almost everyone except for – tadaaaa – Walter Heise in Berlin-Neukölln, Emserstrasse 27. The real Walter doesn’t live anymore, but I like the guys inside, all smoking old men (the shop smells! I like it, gives me a feeling that they are really busy and don’t give a shit about non-smoking fashion), with funny phrases and jokes on their lips, and a gigantic wall of keys from which Smoking Man number one fished the right model in no time with a long fishing rod.